Coadsorption of cyclohexanes and CO on Ni(755): Promoting effect of CO and increase of decomposition fraction by methyl substituent

Hideo Orita; Hiroshi Kondoh; Hisakazu Nozoye

doi:10.1016/S0169-4332(97)00374-7

Coadsorption of cyclohexanes and CO on Ni(755): Promoting effect of CO and increase of decomposition fraction by methyl substituent

Hideo Orita, Hiroshi Kondoh, Hisakazu Nozoye

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Coadsorption of methyl-substituted cyclohexanes and CO has been investigated by temperature-programmed desorption (TPD). Coadsorbed CO promotes decomposition of cyclohexanes. Decomposition fraction (ratio of decomposed molecules to adsorbed ones) of cyclohexanes was determined with changing coverages of CO and cyclohexanes. Decomposition fraction increases sharply when a tertiary C-H bond is introduced into a cyclohexane ring by methyl substitution. This is consistent with the fact that dissociation energy of a tertiary C-H bond is smaller than those of primary and secondary C-H bonds.

Original language	English
Pages (from-to)	592-595
Number of pages	4
Journal	Applied Surface Science
Volume	121-122
DOIs	https://doi.org/10.1016/S0169-4332(97)00374-7
Publication status	Published - 1997 Nov
Externally published	Yes

Keywords

CO
Coadsorption
Promoting effect on decomposition
Stepped surface
Temperature-programmed desorption

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/S0169-4332(97)00374-7

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title = "Coadsorption of cyclohexanes and CO on Ni(755): Promoting effect of CO and increase of decomposition fraction by methyl substituent",

abstract = "Coadsorption of methyl-substituted cyclohexanes and CO has been investigated by temperature-programmed desorption (TPD). Coadsorbed CO promotes decomposition of cyclohexanes. Decomposition fraction (ratio of decomposed molecules to adsorbed ones) of cyclohexanes was determined with changing coverages of CO and cyclohexanes. Decomposition fraction increases sharply when a tertiary C-H bond is introduced into a cyclohexane ring by methyl substitution. This is consistent with the fact that dissociation energy of a tertiary C-H bond is smaller than those of primary and secondary C-H bonds.",

keywords = "CO, Coadsorption, Promoting effect on decomposition, Stepped surface, Temperature-programmed desorption",

author = "Hideo Orita and Hiroshi Kondoh and Hisakazu Nozoye",

year = "1997",

month = nov,

doi = "10.1016/S0169-4332(97)00374-7",

language = "English",

volume = "121-122",

pages = "592--595",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier",

}

TY - JOUR

T1 - Coadsorption of cyclohexanes and CO on Ni(755)

T2 - Promoting effect of CO and increase of decomposition fraction by methyl substituent

AU - Orita, Hideo

AU - Kondoh, Hiroshi

AU - Nozoye, Hisakazu

PY - 1997/11

Y1 - 1997/11

N2 - Coadsorption of methyl-substituted cyclohexanes and CO has been investigated by temperature-programmed desorption (TPD). Coadsorbed CO promotes decomposition of cyclohexanes. Decomposition fraction (ratio of decomposed molecules to adsorbed ones) of cyclohexanes was determined with changing coverages of CO and cyclohexanes. Decomposition fraction increases sharply when a tertiary C-H bond is introduced into a cyclohexane ring by methyl substitution. This is consistent with the fact that dissociation energy of a tertiary C-H bond is smaller than those of primary and secondary C-H bonds.

AB - Coadsorption of methyl-substituted cyclohexanes and CO has been investigated by temperature-programmed desorption (TPD). Coadsorbed CO promotes decomposition of cyclohexanes. Decomposition fraction (ratio of decomposed molecules to adsorbed ones) of cyclohexanes was determined with changing coverages of CO and cyclohexanes. Decomposition fraction increases sharply when a tertiary C-H bond is introduced into a cyclohexane ring by methyl substitution. This is consistent with the fact that dissociation energy of a tertiary C-H bond is smaller than those of primary and secondary C-H bonds.

KW - CO

KW - Coadsorption

KW - Promoting effect on decomposition

KW - Stepped surface

KW - Temperature-programmed desorption

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U2 - 10.1016/S0169-4332(97)00374-7

DO - 10.1016/S0169-4332(97)00374-7

M3 - Article

AN - SCOPUS:0031549853

VL - 121-122

SP - 592

EP - 595

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -

Coadsorption of cyclohexanes and CO on Ni(755): Promoting effect of CO and increase of decomposition fraction by methyl substituent

Abstract

Keywords

ASJC Scopus subject areas

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